Arrange the following environmental events in chronological order (earliest first):

Question

Arrange the following environmental events in chronological order (earliest first):

I. Earth Summit (Rio Earth Summit)

II. Stockholm Conference on Human Environment

III. Adoption of the Kyoto Protocol

IV. Paris Agreement on Climate Change

Choose the correct order:

1. A. I-II-III-IV
2. B. II-I-III-IV (Correct answer)
3. C. II-III-I-IV
4. D. I-III-II-IV

Correct Answer

Option B — II-I-III-IV

Detailed Solution & Explanation

The correct answer is II-I-III-IV.

Key Points

• Placing the four events by year gives the sequence directly:
  • II. Stockholm Conference on the Human Environment - 1972
  • I. Earth Summit, Rio de Janeiro - 1992
  • III. Kyoto Protocol adopted - 1997
  • IV. Paris Agreement - 2015
• The order is therefore II-I-III-IV. Stockholm coming first is the discriminator: three of the four options begin elsewhere and can be eliminated on that single fact.

Additional Information

• Stockholm was the first UN conference to treat the environment as a global concern; it established UNEP, headquartered in Nairobi, and gave rise to World Environment Day on 5 June.
• Rio 1992 marked the shift from environment alone to sustainable development, producing Agenda 21, the Rio Declaration's 27 principles, the CBD and the UNFCCC.
• Kyoto entered into force only in 2005, after Russia's ratification met the threshold — a reminder that adoption and entry into force are different dates and are examined separately.
• Paris was adopted at COP-21 in December 2015 and entered into force in November 2016, unusually quickly for a treaty of its scope.
• In chronological questions, fix the earliest and latest items first; they usually eliminate most options without any need to order the middle.